The set of quantum numbers which represent 3p is :
1. n = 1, l = 0;
2, n = 3; l = 1
3. n = 4; l = 2;
4. n = 4; l = 3
The possible values of n, l, and m for the electron present in 3d would be respectively:
1. n = 3, l = 1, m = – 2, – 1, 3, 1, 2
2. n = 3, l = 3, m = – 2, – 1, 0, 1, 2
3. n = 3, l = 2, m = – 2, – 1, 0, 1, 2
4. n = 5, l = 2, m = – 2, – 1, 0, 1, 2
A pair of d-orbitals having electron density along the axes is:
1.
2.
3.
4.
The maximum number of electrons in a subshell with l = 3 and n = 4 is
1. 14
2. 16
3. 10
4. 12
Assertion (A): | In the third energy level, there is no f subshell. |
Reason (R): | For n = 3, the possible values of l are 0, 1, 2 and for f subshell l = 3. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |
The number of electrons that can be present in the subshells having ms value of \(-\frac{1}{2}\) for n = 4 are:
1. | 36 | 2. | 4 |
3. | 16 | 4. | 2 |
The lowest value of n for 'g' orbitals is :
1. | 4 | 2. | 5 |
3. | 3 | 4. | 1 |
The number of electrons with the azimuthal quantum number l = 1 and 2 for Cr 24 in ground state is
1. 16 and 5
2. 12 and 5
3. 16 and 4
4. 12 and 4
The rule used to determine the maximum number of electrons in a subshell of an atom is:
1. | 4l+2 | 2. | 2l+1 |
3. | 4l-2 | 4. | 2n2 |